Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 62 / 608

Control circuit specifications Wiring
3 - 26
Safety stop function operation
햲
At an internal safety circuit failure, one of E.SAF, E.6, E.7, and E.CPU is displayed on the operation
panel.
햳
SA is displayed when both of the S1 and S2 signals are in open status and no internal safety circuit
failure exists.
햴
ON: Transistor used for an open collector output is conducted.
OFF: Transistor used for an open collector output is not conducted.
Input Power
Input Signal Internal
Safety Circuit
햲
Output Signal
Inverter Operation Enable
Signal
S1-PC S2-PC SAFE
햴
SAFE2
햴
OFF — — — OFF OFF Output shutoff (Safe state)
ON
Short Short
No failure OFF ON Drive enabled
Failure OFF OFF Output shutoff (Safe state)
Open Open
No failure
햳
ON ON Output shutoff (Safe state)
Failure OFF OFF Output shutoff (Safe state)
Short Open Failure OFF OFF Output shutoff (Safe state)
Open Short Failure OFF OFF Output shutoff (Safe state)
Tab. 3-15: Description of Safety stop function operation
NOTE
For more details, refer to the Safety stop function instruction manual (BCN-A211508-004). (Please
contact your sales representative for the manual.)